Iīm definetely NOT an Airbus "supporter", but if my memory serves correct, the 747 had a lot of teething problems as well. Anyone remembers the phrase 747-Glider ?
And the 47 was discribed as the biggest business gamble ever (well, before the 380). At least is was it for for Boeing and PanAm. Boeing won, PanAm didnīt.
Which would explain why a lot of airlines are reluctant to buy now.
But maybe I go it all wrong...